2018631103 has 2 divisors, whose sum is σ = 2018631104. Its totient is φ = 2018631102.

The previous prime is 2018631047. The next prime is 2018631137. The reversal of 2018631103 is 3011368102.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2018631103 - 2⁹ = 2018630591 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2018631203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1009315551 + 1009315552.

It is an arithmetic number, because the mean of its divisors is an integer number (1009315552).

Almost surely, 2^2018631103 is an apocalyptic number.

2018631103 is a deficient number, since it is larger than the sum of its proper divisors (1).

2018631103 is an equidigital number, since it uses as much as digits as its factorization.

2018631103 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 2018631103 is about 44929.1787483368. The cubic root of 2018631103 is about 1263.8212504853.

Adding to 2018631103 its reverse (3011368102), we get a palindrome (5029999205).

The spelling of 2018631103 in words is "two billion, eighteen million, six hundred thirty-one thousand, one hundred three".